Valve.



E. E. OOMSTOGK'.

VALVE.

APPLICATION FILED APR. 8, 1913.

Patented Jan. 13, 1914.

Inventor,

ZZTZZ/WJZJJZ Attorneys- TNT FFEGE ELMER E. COMSTOOK, OF FRESNG, CALIFORNIA,

VALVE.

incense,

Specification of Letters Patent.

Patented Jan. 13, i 914.

Application filed April 8, 1913 Serial No. 759,752,

of California, have invented a new and useful Valve, of which the following is a specification.

his invention relates to an improved form of valve.

One object of the present invention is to provide a valve so constructed that the valve may be easily and quickly ground to its seat without requiring a. disassembling of the valve structur A. further object is to provide a valve in which the valve seat will be suitably protected from foreign material and will be deflected into a receiving pocket therefor.

A further object is to provide a valve of the puppet type with improved means for guiding the valve head during the movement thereof.

l'Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made witl in the scope of what is claimed without departing from the spirit of the invention.

In the drawings accompanying this specification and forming a part thereof, the preferred form of my invention has been illustrated, in which Figure 1 is a cross sectional view taken through the longitudinal axis of my improved valve. Fig. 2 is a cross sectional view taken on the line 2-2 of Fig. 1.

Referring to the drawings in which similar reference numerals indicate corresponding parts, the main body portion of the valve 10 comprises a tube like portion 2 one end of which is internally and externally threaded, the external threads providing means whereby the entire valve is secured to the wall of a boiler or may serve as means for securing the valve to a pipe. To the other end of the tube 2 is secured or formed integral therewith a frusto-conical portion to the front and enlarged end of which is formed a substantially cylindrical portion 4, the front end of the portion 4 being provided with a suitable flange 5 whereby the front cap 6 is secured thereto and efiects a seal joint therewith. The valve casing therefore comprises the portions 2, and i and to which is secured what is termed the front cap 6. The front end of the conical portion 4 is internally threaded as at 7 which thread stops short of the end of the said portion .t and terminates at a shoulder 8.

The valve seat member 9 is similar in outline to the portions 3, aland 5 of the casing V and comprises a frusto-conical portion 10, the externally threaded cylindrical portion 11 and the outstanding flange 12. A valve seat 13 is provided at the inner end of the valve seat member and is ground as illustrated in the drawing to co-act with a suitable valve head which is adapted to seat thereon. The externally threaded portion 11 of the valve seat member loosely engages the portion 7 of the casing and is adapted to effect a seal joint therewith, a suitable limiting means being provided for the loose engagement of the members 4 and 9 by reason of the outstanding flange 12 coming in contact with the shoulder 8 as will be understood, it being noted that suitable means are provided for unscrewing or screwing up the member 9 by means of a wrench or similar device.

l ig. 2 of the drawings is provided to show the construction of the bridging 14 which is secured to the portion 2 of the casing and engages the internal threads thereof, the purpose of the bridging 14 being to provide a guiding means whereby the valve head will be guided upon its seat and always maintained in proper relation thereto, this being effected by providing an elongated valve stem which is journaled within the bridging 14-.

The portion a of the casing is provided with an aperture 15 therein which is subs antially in alinemeut with the end of the valve seat member when the latter is in its proper position and to the side walls of the aperture 15 is secured by bolts or other suitable means a tube 16 in the lower extremity of which is secured a plug 17, the object and purpose of the tube 16 and plug 17 being to provide means whereby any foreign material which may collect within the easing of the valve will have a. suitable collecting receptacle therefor and which receptacle is rendered accessible and may be readily cleaned from time to time. positioning of the aperture 15 is for the The era ct 7 purpose of providing that any foreign mate rial coming in contact with the frusto-conical portion 10 of the valve seat member will be deflected downwardly and into the said tube 16, thereby any foreign material such as stay bolts or similar substance may collect within the receptacle 1.6 and will be prevented from passing through the valve seat member 9 which would tend to clog up the system in which my improved valve is to be used.

The front cap 6 is provided with an annular flange 18 which is similar to the flange of the casing and is intended to effect a seal joint therewith the contacting surfaces of the two flanges being either ground or gasket such as 19 inserted therebetween and a proper pressure brought to bear upon the two flanges by the bolts 20 or other securing means. The central portion of the cap is provided with an aperture 21 therein through which extends a valve stem and the front portion of the aperture 21 is provided with av suitable packing gland and packing nut 22 the same being of the usual type as is employed with longitudinally moving rods.

Comin now to the valve head and valve C stem, the valve head is designated by the numeral 23 and is of the puppet valve type and is adapted to coact wlth the valve seat 13 and when in contact therewith to effect a seal joint at which time the valve, strictly termed is closed. The valve head is provided with the projecting apertured lugs 24l24 upon each side thereof, and to which lugs are secured the valve stems 25, 26, the stem 25 projecting rearwardly and engaging the bridging 1e and the valve stem 26 projecting forwardly and extending through I 21 of the front cap. The end; 28 of the valve stem 26 is enlarged and provided with an end for detachably engaging an actuating lever 29 which by means of the member 30 is linkedly connected to a lug or boss 31 formed upon the outer lower surface of the front cap 6. The actuating lever 29 slidably engages the valve stem 26 and the aperture provides means whereby the valve head may be opened or closed with respect to the valve seat member 9. In order that the valve stem 26 may be rotated about its longitudinal axis the lever 29 is detachably secured thereto and in order to provide means whereby the said rotation of the stem may be effected a handle 32 is journaled upon the stem 26 and is rigidly secured thereto by a pin or equivalent means or may be formed integral with the valve stem it being understood that the valve stem 26 is detachably secured to the lugs 24 of the valve head which provide that the valve stem may be suitably assembled within the valve casing. The handle 32 thus provides means whereby the valve stem 26 may be rotated about its longitudinal axis which will result in a. rotating of the valve head or plunger 23 which will serve to grind the valve head or plunger 23 upon its seat 13 without requiring that the valve be disassembled which would necessitate that the boiler or system to which the valve is connected be temporarily put out of commission.

The discharge or valve outlet tube 33 threadedly engages an aperture 34 in the side wall of the cap 6 and provides means for the connecting of a pipe line to the valve.

In order to provide a suitable stop for the longitudinal movement of the valve stem and therefore the valve head, the extreme end of the valve stem 25 is provided with an extension 39 which is journaled within a suitable aperture formed in the bridging lat and the shoulder so formed between the main portion of the valve stem 25 and the extension is adapted to contact with the side walls of the bridging aperture which effects a stop therefor.

The advantages of the valve formed as described will be readily apparent and mention is made of the fact that the valve head 23 is enlarged so as to extend over the extreme ends of the valve seat 13 and to thereby provide a shield therefor which will prevent any foreign material from striking against the valve seat which would spoil the sealing qualities of the valve. The positioning of the tube 16 with relation to the valve seat plunger head and the conical portion of valve seat member provides that suitable means is provided for the depositing of foreign material out of the valve body and will be collected therein until such time as it may be conveniently removed. The valve stems 25 and 26, which may be made integral with the valve head 23, provides that the plunger head will always be maintained in the proper relation to its valve seat and will always effect a seal joint therewith. The bridging 1a which supports one end of the valve stem 25, does not in any way interfere with the flow of the liquid or gas which is adapted to enter through the portion 2 of the casing. The portion 2 serves as an inlet for the gas or liquid and provides that the valve will be held in a closed position by reason of the pressure exerted thereon which insures that the valve head will always be maintained in a seated position. The providing of the cap makes the entire valve construction accessible and furthermore one which may be easily installed in position with respect to the inlet and outlet pipes. The actuating handle 29 provides suitable means whereby the valve may be opened or closed and by detachably securing the said actuating handle onto the valve stem allows the said handle to be detached therefrom and a suitable rotating of the handle 32 allows the valve head to be ground into its seat from time to time when circumstances and occasions may warrant.

Having thus fully described the invention what I claim to be new and original with me is l. A valve comprising a casing, and provided with a valve seat, a valve head adapted to effect a seal joint with said valve seat and extending therebeyond to form a shield therefor, said casing provided with an aper ture adjacent said valve seat, a tube secured to the side walls of the aperture, a detachable plug secured to said tube, a valve stem secured to said valve head, and means for longitudinally moving said valve stem.

2. A valve comprising a casing, a frustoconical valve seat member disposed therein, and provided with a valve seat, said casing provided with an opening therein adjacent said valve seat, a tube secured to said casing opening, a plug cletachably secured to said tube, said frusto-conical valve seat member adapted to collect foreign material within said tube, the valve head adapted to effect a seal joint with said valve seat and projecting therebeyond to form a seal for said valve seat and to further deflect material into said tube, a valve stem secured to said valve head for the actuation thereof.

3. In a valve the combination of a casing, a valve seat member detachably secured therein, and provided with a valve seat, a means for collecting foreign material and preventing the same from passing through said valve seat, a valve head adapted to effect a seal joint with said valve seat and to seal the same, a cap detachably secured to said valve casing and provided with an aperture therein, a discharge tube communicating with said cap, a valve stem secured to said valve head and extending through and slidably engaging said valve cap aperture, a lever pivotally secured to said valve cap and detachably engaging said valve stem, means whereby the said valve stem may be rotated, a second valve stem secured to said valve head and projecting rearwardly therefrom, and slidably engaging bridging disposed in the inlet portion of said valve casing, said valve stems adapted to aline and maintain in proper position the said valve head with respect to said valve seat.

4.7 A valve comprising a casing, a conical member provided with a valve seat at the apex thereof, a valve head relatively larger at its outer portion than the said valve seat, adapted to protect the same and effect a seal joint therewith, and a downwardly extending tube juxtaposed the said valve seat adapted to collect foreign material directed therein by said conical member.

5. A valve comprising a casing provided with a valve seat therein, a valve head relatively larger at its outer portion than the said valve seat, adapted to protect the same and effect a seal joint therewith, a down wardly extending tube juxtaposed the said valve seat adapted to collect foreign material directed therein by the said valve seat.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

ELMER E. OOMSTOOK.

Witnesses:

' D. G. VVINNE, Z. B. GRoss.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

